這是jsp頁面代碼
??<body>
????<h1>第一個myeclipse?servlet程序</h1>
????
????<!--用get方式（表單沒有指定method,或者正常的URL,請求都是get方式），請求一個servlet???-->
????<a?href="servlet/HelloServlet">get方式請求HelloServlet?</a>
????
????<%--post請求，寫一個表單，指定method=post?--%>
????<form?action="servlet/HelloServlet"?method="post">
????<input?type="submit"?value="post請求servlet"?/>
????</form>
??</body>
??
??以下是servlet代碼
??package?servlet;
import?java.io.IOException;
import?java.io.PrintWriter;
import?javax.servlet.Servlet;
import?javax.servlet.ServletConfig;
import?javax.servlet.ServletException;
import?javax.servlet.annotation.WebServlet;
import?javax.servlet.http.HttpServlet;
import?javax.servlet.http.HttpServletRequest;
import?javax.servlet.http.HttpServletResponse;
/**
?*?Servlet?implementation?class?HelloServlet
?*/
@WebServlet("/servlet/HelloServlet")
public?class?HelloServlet?extends?HttpServlet?{
private?static?final?long?serialVersionUID?=?1L;
/**
?*?@see?HttpServlet#HttpServlet()
?*/
public?HelloServlet()?{
super();
//?TODO?Auto-generated?constructor?stub
}
/**
?*?@see?Servlet#init(ServletConfig)
?*/
public?void?init(ServletConfig?config)?throws?ServletException?{
//?TODO?Auto-generated?method?stub
}
/**
?*?@see?Servlet#destroy()
?*/
public?void?destroy()?{
//?TODO?Auto-generated?method?stub
}
/**
?*?@see?HttpServlet#service(HttpServletRequest?request,?HttpServletResponse
?*??????response)
?*/
protected?void?service(HttpServletRequest?request,
HttpServletResponse?response)?throws?ServletException,?IOException?{
//?TODO?Auto-generated?method?stub
}
/**
?*?@see?HttpServlet#doGet(HttpServletRequest?request,?HttpServletResponse
?*??????response)
?*/
protected?void?doGet(HttpServletRequest?request,
HttpServletResponse?response)?throws?ServletException,?IOException?{
//?TODO?Auto-generated?method?stub
System.out.println("doGet處理get請求?");//?這是后臺顯示的
PrintWriter?pw?=?response.getWriter();
response.setContentType("text/html;charset=utf-8");
pw.println("<strong>helloServelt</strong>");
}
@Override
protected?void?doPost(HttpServletRequest?request,
HttpServletResponse?response)?throws?ServletException,?IOException?{
//?TODO?Auto-generated?method?stub
System.out.println("dopost處理post請求?");//?這是后臺顯示的
PrintWriter?pw?=?response.getWriter();
response.setContentType("text/html;charset=utf-8");
pw.println("<strong>helloServelt</strong>");
}
}網上看到說是servlet 3.0的新特性，不使用xml注解，也是可以的，但是我的卻是空白頁面？這是為何？
使用myeslipse2015CI 創建servlet，瀏覽器訪問servlet，頁面是空白的？
Developer_Huang
2017-08-14 10:17:12
